Hikvision Acusense Analytics Tested

By Rob Kilpatrick, Published Sep 23, 2019, 09:57am EDT (Research)

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  • ****** *** ******** ******* ******* *****:****** ******* ******* *** ***** **** missed **********, *** *** *****, ******* and ***.

Hikvision ********

**** **** ********* *** ***** *** opportunity ** ****** ******* ****** ******* but *** *** ***** *** *********** for ******** ******* ** ******* *********. They ******* *** **** ******** ******* worked **** ** *********** **** ******** NVRs, *** ** *** ***** ** saw ** ********** ** *********** ******* Acusense *******' ** ***** ********* *** Acusense ******* **** ** *********** **** the ***.

Settings ******* ****** ** *** ******

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Vs. ***** *********+

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Vs. **** **

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Vs. ******** *** ***** ***

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Vs. ********* ******** ********* *** ***

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*******

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Running ****** ******

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Running-Subjects-Not-Detected

People ********** ************* ** ********

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False ****** ** *******

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False ****** ** ****** ****

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parked vehicle alert

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No-False-Alerts-On-Foliage_Shadows-Outdoors

******** **** ******* *** ** *** most ****** ******* ** ***** ******, heavy **** *** **** ******** **** the ****.

No-False-Alerts-On-Rain_Droplets

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Detection ********

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Simple *****

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VMS ***********

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Camera ********: ********* *** ******** ***** ****

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Ambarella S3L System On Chip

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Versions ****

*** ********* ******** **** **** ****** testing:

  • ********* **-*********-*/**: **.*.** ***** ******
  • **-*******-**/**/**: **.*.** ***** ******

Comments (29)

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Ross Vander Klok

IPVMU Certified | 09/23/19 03:24pm

It looks like there is a way to turn off the detection for vehicle or human so to be fair I doubt many would be looking for autos in a small hallway scene. However, that error leads me to believe they may be using the size of an object in the scene to differentiate between human or auto?

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Clint Hays

| In reply to Ross Vander Klok | 09/23/19 05:09pm

I definitely want to know if there is a car in my mall!

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Ethan Ace

IPVM | In reply to Ross Vander Klok | 09/23/19 05:12pm

For sure, if I set up a camera in that hallway in production, I would likely not have checked the "vehicle" detection box. That's exactly the problem. If we had checked only person detection in that scene, we would have missed a significant number of subjects. They simply aren't detected at all.

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Brian Karas

Pelican Zero
In reply to Ross Vander Klok | 09/23/19 05:31pm

It also leads me to believe that they are not doing any kind of true object classification, most commonly done today with CNN/DNN analytics. Kind of curious given their use of the Movidius chip, from this test they do not seem to be fully utilizing its capabilities.

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Ethan Ace

IPVM | 09/23/19 05:11pm

We've added a section comparing Acusense to Hikvision's standard Intrusion and VMD:

Vs. Hikvision Standard Intrusion And VMD

Compared to Hikvision's standard Intrusion analytics, Acusense performance is clearly better, rejecting more false alarms from more sources, including shadows and lights, more alarms on animals, etc. Performance is drastically better than standard VMD, which alerted on practically any pixel change, including but not limited to the common false alert sources above, without discriminating between people, vehicles, or other objects.

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Dennis Ruban

In reply to Ethan Ace | 09/25/19 03:13pm

I can confirm the drastic improvement in analytics and overall picture quality compared to the previous generation. Good review, thank you!

I hope they will improve the detection algorithms in the future FW versions

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Chris Chambers

In reply to Dennis Ruban | 01/06/20 03:09am

Interestingly enough, the Hik website I primarily use does not even show a 5.5.72 firmware. It shows the current one now as 5.6.3, and the only previous version shown is 5.6.0. Ditto for the other Accusense models I checked. (5.6.3 is also available for many other cameras without Accusense.)

4 MP Outdoor AcuSense Fixed Turret Camera | Hikvision US | The world’s largest video surveillance manufacturer

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Undisclosed #1

IPVMU Certified | 09/23/19 05:37pm

Animals were sometimes classified as human...However, people running through the scene were missed completely. No settings changes improved this detection.

Guard 1: Busy shift?

Guard 2: Had an alert, turned out to be a dog. Otherwise, nothing...

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Undisclosed Integrator #2

09/23/19 06:07pm

Hey Ethan. Not sure if you want to try this, but do you know what would happen if you crank sensitivity up to 90, or 100? Just curious if that might help the camera catch fast moving objects.

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Rob Kilpatrick

IPVM | IPVMU Certified | In reply to Undisclosed Integrator #2 | 09/23/19 06:35pm

When I tested this I did adjust sensitivity and threshold to try and get an alarm while I was running, even having it at max wouldn't trigger an alarm, it did not even draw a bounding box around me.

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Undisclosed #1

IPVMU Certified | In reply to Rob Kilpatrick | 09/23/19 09:29pm

...get an alarm while I was running, even having it at max wouldn't trigger an alarm, it did not even draw a bounding box around me.

SoC: Did you see that?

AI: See what?

SoC: If I knew “what”, I wouldn’t need you. Something just went flying by...

AI: You mean that blurred streak of light. I have no idea. It’s gone now. Anyway, out of frame, out of mind, right?

SoC: Well I’m gonna send an alert anyway, the user should be notified!

AI: And what are you going to say it is this time, a giraffe, a car, maybe a sand storm?

SoC: Nah, you’re right those are getting stale. You got any ideas?

AI: Yeah, keep your trap shut. Remember, if faced with the choice of false negative vs. false positive, ALWAYS choose false negative. If you missed it, they probably will too; nobody’s the wiser. On the other hand, calling out “heavy snow” in July will just put us on the cover of IPVM, again!

SoC: You’re so smart!

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Undisclosed Integrator #2

09/23/19 06:46pm

Thanks for the information Rob.

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David Johnson

09/23/19 08:05pm

Hi guys - One of our common false triggers is insects at night. If you could figure out how to test for this it would be very helpful.

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Sergey Bystrov

NetworkOptix
09/24/19 08:41am

Thanks, IPVM for testing different lines.

There is one thing I do not understand.
Analytics got settings, right?
And those probably need to be tuned for different conditions.
Are you sure you do a good job on tunning it?
Or do you always use out of the box ones?

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John Honovich

IPVM | In reply to Sergey Bystrov | 09/24/19 11:05am

Are you sure you do a good job on tunning it?

We spoke repeatedly with Hikvision management throughout this test and incorporated their feedback and suggestions. Ethan will update the report with details.

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Sergey Bystrov

NetworkOptix
In reply to John Honovich | 09/24/19 12:12pm

Thanks. I assume you do the same with other manufacturers, so you do adjust settings form scene to scene.

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Ethan Ace

IPVM | 09/24/19 03:13pm

For clarity, we've added two sections to the report. As in other tests, we reached out to Hikvision for comment and suggestions on optimizing the analytics. We also perform our own settings changes to see what effects they have (in this case, minimal to none).

Hikvision Feedback

Note that Hikvision was given the opportunity to review results during testing but did not offer any suggestions for settings changes to improve detection. They pointed out that Acusense cameras worked best in conjunction with Acusense NVRs, but in our tests we saw no difference in performance between Acusense cameras' on board detection and Acusense cameras used in conjunction with the NVR.

Settings Changes Tested In All Scenes

In all scenes, we adjusted settings to see if detection performance improved, but found that default settings produced the best results. In Hikvision's intrusion analytics, including Acusense, the only settings adjustments are threshold (time object is in scene before triggering) and sensitivity ("size of the object which can trigger alarm"). Neither of these settings eliminated false alerts.

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Undisclosed Integrator #3

In reply to Ethan Ace | 11/06/19 05:03am

Hi Ethan,

My understanding of Hik's Acusense is you can get these analytics on-board the camera as well as built into the NVR. The NVR will work the analytics on ordinary camera feeds, while Acusense cameras will provide the analytics on NON-Acusense NVRs by just pushing through an event notification.

Is this correct? If so I'm thinking of picking up one of the Acusense NVRs to replace the one we have at the shop which has various IP cameras with the basic analytics. Thoughts?

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Rob Kilpatrick

IPVM | IPVMU Certified | In reply to Undisclosed Integrator #3 | 11/06/19 04:46pm

Yes, UI3, this is correct, the Acusense NVR analytics will work with third party camera streams and provide people and vehicle alerts. The Acusense cameras will have event notifications on non-Acusense NVRs but won't provide the classification.

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Undisclosed Integrator #3

In reply to Rob Kilpatrick | 11/06/19 06:34pm

Thanks very much for the clarification!

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Christopher Wargo

09/25/19 12:12pm

Hello,

I believe there might be a typo in the "Vs. Wyze AI" section of the article. You mentioned "Axis Perimeter Defender" should that be Acusense instead?

Thanks,

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Ethan Ace

IPVM | In reply to Christopher Wargo | 09/25/19 02:20pm

Yes, you are right. I've fixed that, thanks for pointing it out!

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Undisclosed Integrator #4

11/20/19 03:53am

You said :

Detection Distance

In our tests, Acusense reliably detected at ~105' distance, ~10 PPF in the 4MP DS-2CD2346G1-I/SL camera we tested

Question:

Can please specify the lens used in the test? 2.8mm, 4mm or 8mm?

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Dennis Ruban

In reply to Undisclosed Integrator #4 | 11/20/19 03:34pm

10 ppf at 100' - it's 2.8mm

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Rob Kilpatrick

IPVM | IPVMU Certified | In reply to Dennis Ruban | 11/20/19 04:58pm

This is correct, we used a 2.8mm for the test.

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Chris Chambers

01/06/20 03:17am

Any updates using the later 5.6.0 or 5.6.3 firmware? This will indeed be a huge PR blow for Hik if it cannot match Dahua Analytics+.

The Dahua A+ models I see also include the larger sensor (1/1.8), where Hik is using the smaller size similar to their mid to lower end models.

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Undisclosed Integrator #5

03/14/20 12:04am

Is it still the case that standard motion events (VMD) is disabled when the AcuSense analytics are enabled resulting in continuous recording? I tested the DS-2CD2T46G1 when it first came out and could not have both VMD and AcuSense enabled simultaneously.

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Rob Kilpatrick

IPVM | IPVMU Certified | In reply to Undisclosed Integrator #5 | 03/16/20 03:38am

UI5, I updated firmware on our DS-2CD2346G1-I/SL to V5.6.0 build 191111 and I don't see an option for VMD, even when I turn off smart events in the metadata settings.

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Undisclosed Integrator #5

In reply to Rob Kilpatrick | 03/18/20 05:09pm

That's too bad. It's not a huge deal if you have lots of HDD space using an NVR, but the continuous recordings using a MicroSD fills up quickly.

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